From: Christoph Hellwig <hch@lst.de>
To: mst@redhat.com
Cc: axboe@kernel.dk, linux-block@vger.kernel.org,
linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org
Subject: automatic IRQ affinity for virtio
Date: Thu, 17 Nov 2016 11:43:12 +0100 [thread overview]
Message-ID: <1479379403-27880-1-git-send-email-hch@lst.de> (raw)
Hi Michael,
this series contains a couple cleanups for the virtio_pci interrupt
handling code, including a switch to the new pci_irq_alloc_vectors
helper, and support for automatic affinity by the PCI layer if the
consumers ask for it. It then converts over virtio_blk to use this
functionality so that it's blk-mq queues are aligned to the MSI-X
vector routing. I have a similar patch in the queue for virtio-scsi,
but that would require pulling in the SCSI tree, so I'm not sure if
you'd like it for this window, but if you do I can send it in another
series. The third driver using per-CPU virtqueues is virtio_net,
but that will take some more time as I haven't started work on the
networking infrastructure yet.
Note that these patches require core IRQ changes from a stable
branch in the tip tree to be pulled in first:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/for-block
Gitweb:
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/log/?h=irq/for-block
next reply other threads:[~2016-11-17 10:43 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-17 10:43 Christoph Hellwig [this message]
2016-11-17 10:43 ` [PATCH 01/11] virtio_pci: use pci_alloc_irq_vectors Christoph Hellwig
2016-11-17 10:43 ` [PATCH 02/11] virtio_pci: remove the call to vp_free_vectors in vp_request_msix_vectors Christoph Hellwig
2016-11-17 10:43 ` [PATCH 03/11] virtio_pci: merge vp_free_vectors into vp_del_vqs Christoph Hellwig
2016-11-17 10:43 ` [PATCH 04/11] virtio_pci: split vp_try_to_find_vqs into INTx and MSI-X variants Christoph Hellwig
2016-11-17 10:43 ` [PATCH 05/11] virtio_pci: use shared interrupts for virtqueues Christoph Hellwig
2016-11-17 10:43 ` [PATCH 06/11] virtio_pci: use msix_enable flag in struct pci_dev Christoph Hellwig
2016-11-17 10:43 ` [PATCH 07/11] virtio_pci: simplify MSI-X setup Christoph Hellwig
2016-11-17 10:43 ` [PATCH 08/11] virtio: allow drivers to request IRQ affinity when creating VQs Christoph Hellwig
2016-11-17 10:43 ` [PATCH 09/11] virtio: provide a method to get the IRQ affinity mask for a virtqueue Christoph Hellwig
2016-11-17 10:43 ` [PATCH 10/11] blk-mq: provide a default queue mapping for virtio device Christoph Hellwig
2016-11-17 10:43 ` [PATCH 11/11] virtio_blk: use virtio IRQ affinity Christoph Hellwig
2016-11-25 7:25 ` automatic IRQ affinity for virtio Christoph Hellwig
[not found] ` <20161125072538.GA732@lst.de>
2016-11-27 3:37 ` Michael S. Tsirkin
2016-12-07 18:13 ` Christoph Hellwig
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